
function chapterProductInfoClicked(btn_id)
{
    if (btn_id == null)
    {
        alert('Error: btn_id is null');
        return;
    }
    var action = 'chapterProductInfoClicked';
    var jsonStr = null;
   
    jsonStr = '{"btn_id":"' + btn_id + '"}';
   
    cmread.callBackClient(action, jsonStr, null);
}

